I get a question wrong in an exam? That's user's fault. A marker finds a bug in my code? User probably did that. Group missed some requirements for a project? Ain't no one in the group responsible except user (who isn't even in the group)
It's the butterfly effect. I flap my arms here in the US, creating a gust of wind, which changes weather patterns, causing a wildfire to happen in Australia, giving my agents the perfect cover to sneak into your room and sabotage you